baber/WOPTO huggingface dataset:
Patent GB-908277-A (GB)
Title: Hydraulic shock absorber
IPC: F16F9/092
Filed: 1960-06-20
Abstract: 908,277. Hydraulic shock absorbers. STABILUS INDUSTRIE-UND HANDELSGESELLSCHAFT. June 20, 1960 [June 20, 1959], No. 21563/60. Class 108(3). In an hydraulic shock absorber of the piston and cylinder type in which a concentric reservoir 8 is provided on the outside of the cylinder 3 within a casing 7, a cylindrical elastic membrane 6 is provided for separating the fluid and gas in the reservoir 8 and is sealed at its ends by plastic deformation between the cylinder 3 and casing 7. Locating ridges 11, 13 are provided in the cylinder 3 and casing, the latter having end flanges 12 to retain the thickened end portions 10 of the membrane 6. A hole 14 is provided in one flange for inserting compressed air, gas, &c. by an injection needle after assembly.
Patent GB-741936-A (GB)
Title: Improvements in or relating to high-voltage circuit breakers
IPC: H01H33/02
Filed: 1952-08-27
Abstract: 741,936. Transformers. SOUTH WALES SWITCHGEAR, Ltd., BUTTREY, R. N., and MATHER, A. G. July 27,1953 [Aug. 27,1952], No. 21592/52. Class 38 (2). [Also in Group XXXVII] In an enclosed high-voltage circuit-breaker having at least one current transformer 9 surrounding a terminal bushing 6, either the transformer or the bushing may be removed without removing the other. The bushing 6 is carried by a mounting 20 secured by bolts 21 to a flange 19 of the top plate 1 of the circuitbreaker, the mounting having a downwardlyextending cylindrical sleeve 22 supporting the bushing. The transformer is housed in the annular space between the sleeve 22 and a cylindrical liner 23 which is positioned by a stop 24 abutting the flange 19. A retaining plate 26 is secured to the liner 23 by nuts 27 on spigots 25 on the lower end of the liner. The plate 26 is secured to the sleeve 22 by a nut 29 on the threaded lower end of the sleeve. To remove the transformer, the oil tank 14 is lowered and the nuts 27, 29 and plate 26 are removed. The transformer can then be lowered out of the liner. To remove the bushing, the oil tank is lowered and the nuts 21, 29 are removed. The bushing and its mounting can then be removed upwardly, leaving the transformer in position. Specification 735,425, [Group XXXVII], is referred to.
Patent GB-333709-A (GB)
Title: Improvements relating to jib-locking devices for mining machines
IPC: E21C35/02
Filed: 1929-07-13
Abstract: 333,709. Anderson, A., and Anderson, Boyes & Co., Ltd. July 13, 1929. Coal-cutting machines. - In a mining-machine with a cutter-carrying jib pivoted to the gear-wheel casing and adapted to be locked in adjusted position by a latch engageable with notches in a member moving with the jib, the latch is carried by a revoluble spindle mounted in the gear-head casing, and a spring tends to move the latch into engagement with a registering notch, while manually-controlled means are provided for retracting the latch from the notch in opposition to the spring. In Fig. 2, the latch 3 is carried by a spindle 4 adapted to be rotated either by a key engaging the ends of the spindle or from a remote control comprising a rod 12 and a rack 10 engaging teeth on the spindle; a spring 8 acting against a collar 17 on the rod 12 tends to move the latch 3 into engagement with a registering notch 6. A lug 20 on the spindle co-operates with two lugs 18 to limit rotation of the spindle in either direction. In Fig. 5, the actuating-spring 8a surrounds the spindle and has one end in engagement with a pin 14 thereon and the other in engagement with an angularly-adjustable bush 15 forming a bearing for one end of the spindle.
Patent GB-410073-A (GB)
Title: Improvements in spring hammers
IPC: B25D11/12
Filed: 1932-08-02
Abstract: 410,073. Spring hammers. MEISSNER, F. E., 36, Avenue de la Rochetaillee, St.-Etienne, Loire, France. Aug. 2, 1932, No. 21616. Void [Abridged as open to inspection under Sect. 91 of the Acts, Oct. 3, 1932]. [Class 124.] In a spring hammer wherein the striker 21 is connected by springs with a reciprocated holder 7, the elastic and kinematic characteristics of the hammer parts are so related that there is no stress in the spring at the movement of impact. The Specification contains a mathematical formula expressing this relation in terms of a quantity stated as the " rebound ratio" of the impact. The shank of the striker is formed with two beads 29 whereby the striker is guided to slide' in a slotted sleeve 13 attached to the casing.
Patent GB-1216955-A (GB)
Title: Non-scanning optical processor for display of video signals
Inventor: DENTINO MAURO JOSEPH
IPC: H04N3/12
Filed: 1969-04-28
Abstract: 1,216,955. Light modulation; optical display. NORTH AMERICAN ROCKWELL CORP. 28 April, 1969, No. 21617/69. Headings H4D and H4F. Specification describes an optical display system wherein all of a time varying signal, e.g. a pulse radar video return signal, may be simultaneously displayed by optical projection apparatus utalizing Bragg angle reflection and the DeBye-Sears effect (see pp. 42-54, IRE Spectrum May 67). Such a system comprises an amplitude modulation device 16, Fig. 1 wherein the linearly frequency modulated output of oscillator 15 (frequency variation 22, Fig. 2) is amplitude modulated by the video signal 21, to transform the amplitude/time video signal to an amplitude/frequency signal 24, Fig. 3. Signal 24 is time compressed by dispersive delay line 17 to a complex carrier pulse 23 having a frequency spectrum being an analogue of 24. Pulse 23 is fed to a voltage to pressure transducer 27 being the input to a transparent acoustic delay line 26 having a delay of one p.r.p., and terminated by an acoustic impedance 28. A beam of coherent e.g. laser light passes through the delay line and is focused by lens 29. According to said DeBye- Sears effect the beam is focused at a point in plane 30 distant from the mid or axial point in dependence on the frequency of the acoustic wave passing through the delay line, a wave of frequency fc 0 , Fig. 3, i.e. the bottom frequency of the oscillator output, thereby producing a focused spot on said axial point and higher frequencies producing focused spots at greater deviations from said point. The entire video signal 21 is thus simultaneously reproduced as a focused brightness modulation in plane 30. By making the delay line of line 26 equal to a plurality of p.r.p.'s the video signal may be integrated over said plurality of periods. A second series of acoustic delay lines 126, Fig. 5 may be arranged to deflect the emerging from delay line 26 in a plane orthogonal to plane 30 and are fed with acoustic energy from transducers 127 energized by a variable frequency oscillator controlled by the direction of the radar antenna. A two dimensional range/direction display 30 is thus produced.
Patent GB-579430-A (GB)
Title: Improvement in torsional vibration dampers
IPC: F16F15/129
Filed: 1943-12-28
Abstract: 579,430. Damped resilient drives. JACK & HENITZ, Inc. Dec. 28, 1943, No. 21754. Convention date, Nov. 10, 1942. [Class 80 (ii)] [Also in Group XXXII] A resilient quill drive for a generator or other machine mounted on its driving engine, comprises a tube 15 mounted in bearings 3, 4 and carrying, for example, the generator armature ; within the tube is a resilient drive shaft 11 one end 12, of which has a rigid driving connection with the tube, whilst towards the other end, which is connected to the engine, it has a frictional coupling with the tube. This coupling comprises a friction plate 23 splined to the resilient shaft and urged against an end plate 21 of a housing 20 on the tube by a spring-loaded ring 24. The friction coupling serves not only to dampen torsional vibrations of the tube, but also to accommodate misalignment of the bearings 3, 4 with the engine shaft. The invention is of particular application to accessory drives on aero-engines.
Patent GB-374320-A (GB)
Title: Improvements in and relating to conveying apparatus
IPC: B65G69/00
Filed: 1931-07-30
Abstract: 374,320. Conveyers: piling coal : trimming. WHYTE, J. N., 321, Dashwood House, Old Broad Street, London. July 30, 1931, No. 21781. [Classes 78 (i) and 78 (iv).] Conveyer-apparatus for feeding coal or other material from a supply a into a bunker comprises two or more endless ropes or chains d with pivoted trays b which receive the material at A and drag over the heap f carrying the material forward to the edge where the plates fall to the vertical position and deliver the material on to the front of the heap. The lower portions b<1> of the plates may be detachable and may be fitted with shoes or rollers h.
Patent GB-134116-A (GB)
Title: Diaphragms or Separators for use in Separating Two Liquids.
Inventor: THATCHER CHARLES JENNINGS
IPC: C22B7/04
Filed: 1918-12-30
Abstract: 134,116. Thatcher, C. J. Dec. 30, 1918. Drawings to Specification. Water solutions of chemical compounds for proofing.-Diaphragms for use in electrolysis, liquid-diffusion apparatus, &c. have their inter. stices filled with gelatinous materials such as hydrates and silicates. For use in alkaline liquids, a suitable impregnating material is magnesium hydrate; for ammoniacal liquids, aluminium hydrate; for acids and alkalies, magnesium silicate; and for acids only, gelatinous silica. Magnesium hydrate may be precipitated by immersing the diaphragm successively in strong magnesium sulphate solution and in caustic soda of say 10 per cent strength, or by electrolysis with the former solution as anolyte and the latter solution as catholyte. Alumina is similarly precipitated. For magnesium silicate, it is preferable to saturate the material with water-glass solution before treatment with a magnesium solution. Silica is precipitated by the use of water-glass and acids. Undesirable soluble products may be washed out before use of the diaphragms. To prevent drying before use, a hygroscopic material such as calcium chloride, caustic soda, or sulphuric acid may be applied after, or left in from, the precipitation.
Patent GB-154718-A (GB)
Title: Improvements in or relating to the treatment of sulphide ores containing lead and zin
IPC: C22B19/02
Filed: 1919-09-04
Abstract: Sulphide ores of lead and zinc are treated with sulphuric acid containing free sulphur trioxide or with sulphur trioxide in the gaseous form to convert the lead &c. into sulphates while the zinc remains in the form of sulphide.  The lead sulphate is separated from the zinc sulphide, for instance by flotation. Silver sulphate may be separated from lead sulphate by treatment with water.  Cadmium and bismuth, if present, are converted into sulphates which are readily separated from lead sulphate.
Patent GB-263902-A (GB)
Title: Improvements in and relating to blade rings of radial-flow turbines
IPC: F01D5/04
Filed: 1925-09-01
Abstract: 263,902. Fairweather, H. G. C., (Allmanna Svenska Elektriska Aktiebolaget). Sept. 1, 1925. Blades.-The blades a of radial-flow turbines are formed integral with their dovetail roots b, c, which engage notches in the supporting rings d, e, the roots and supporting rings being rigidly secured together by subjecting the side-walls of the notches to a rolling or pressing operation. A number of small grooves may be cut in the slanting faces of the dove-tails. The blades may be made of a material difficult to solder or weld, as for example rustless steel.
Patent GB-1452471-A (GB)
Title: Hydraulic servomotor
IPC: F02D1/12
Filed: 1975-05-21
Abstract: 1452471 Fluid pressure servomotor systems MOTOREN-UND TURBINEN-UNION FRIEDRICHSHAFEN GmbH 21 May 1975 [22 June 1974] 21886/75 Heading G3P A hydraulic servomotor controlling the fuel injection pump 25 of an internal combustion engine comprises an axially slidable control member 18 responsive to a speed governor 11 to regulate, during normal operation, the flow to servomotor chamber 27 of a pump pressurized control liquid supplied via port 20 and chamber 21. The latter contains a piston 30 which is normally urged by pump pressure to the position shown. Should pump pressure be absent, e.g. at engine starting or owing to pump failure, spring 31 urges piston 30 leftwards, Fig. 2 (not shown), so as to sandwich control member abutment 28 between piston 30 and an extension of servopiston 22. Thus the latter moves rigidly with control member 18 without servo action. An adjustable auxiliary spring 34 compensates for the resulting detensioning of governor spring 16 and ensures that for a given speed the governor sets the same rate of fuel flow with or without servo action. Fig. 3 (not shown) illustrates a modified piston 30.
Patent GB-1530545-A (GB)
Title: Circuit arrangement for positioning the data heads of a disc store
IPC: G05B19/39
Filed: 1977-05-25
Abstract: 1530545 Automatic control SIEMENS AG 25 May 1977 [30 June 1976] 21988/77 Heading G3N A system for controlling the position of a head on a disc track includes a head accessing control in which the head is positioned according to an actual head speed signal and a desired value. This is derived from a digital register 1, in which a desired track to be accessed is set and which is counted down as each track is traversed, by a D-A converter 2, a sign changer 3 and function generator 4. When the contents of register 1 is zero, switch 17 is opened and the head controlled according to an analogue head position error signal and a track offset signal from sign changer 3.
Patent GB-996695-A (GB)
Title: Shuttlecock
Inventor: CARLTON WILLIAM CHARLES
IPC: A63B67/18
Filed: 1964-05-28
Abstract: 996,695. Shuttlecocks. CARLTON TYRE SAVING CO. Ltd. May 28, 1964, No. 22015/64. Heading A6S. A shuttlecock has a skirt B of plastics material with main stems C extending the length of the skirt, transverse main ribs D and intermediate stems E characterized in that the thickness of the intermediate stems E adjacent the main stems C is less than that of intermediate stems E remote from the main stems C.
Patent GB-256800-A (GB)
Title: Improvements in or relating to apparatus for feeding material to gravity bucket conveyors
IPC: B65G67/00
Filed: 1925-09-04
Abstract: 256,800. Mitchell, F. G. Sept. 4, 1925. Feeding devices for endless chain conveyers; shoots.-Material is transferred from a hopper r to a gravity bucket conveyer a by a rotary table c and fixed guides s, s<1>. The table is driven by the conveyer chains through gearing of such a ratio that the discharge apertures e are brought in succession over the successive buckets. The discharge of material over the outer edge of a bucket is prevented-by a. curved extension s<2> of the guide s'. The amount of material transferred may be varied by adjusting the guides.
Patent GB-871020-A (GB)
Title: Improvements in or relating to the manufacture of cast worm wheels
IPC: B23F11/00
Filed: 1957-07-12
Abstract: 871,020. Copy-milling; casting; moulds; making worm-wheels and moulds therefor. HATCH, J. A. July 12, 1957, No. 22216/57. Classes 83 (1), 83 (2) and 83 (3). A method of manufacturing a worm-wheel consists in casting the wheel in a mould consisting of several machined metal segments. A mould segment B slides on a bracket 29 and is attached to a sector 46 rotatable by a worm 25 about an axis WH representing the axis of the worm-wheel to be cast. The bracket 29 is vertically adjustable on a cradle 5 rotatable by gearing 87, 88 about an axis WO representing the axis of the meshing worm. The cradle is mounted on a bracket 1 supported on a vertically and horizontally movable slide M. The position of the bracket 29 is adjusted by moving the slide M and by moving the worm 25 axially on its shaft 17. The blank is secured to the sector 46 by a locating screw 50 passing through one of a series of holes 47. When the shaft 17 or the shaft 10 of the cradle 5 is rotated, interconnecting change gearing 76 causes the shafts to rotate at a selected ratio and the tool T to cut a tooth space of the correct lead on the blank. The shaft 17, Fig. 9, may be rotated from a power- or hand-driven shaft 92 through gearing 104, a shaft 106, gearing 118 and swinging arms 117, 127. Alternatively, the shaft 106 may be coupled to the shaft 10 and the arms 117, 127 omitted. The cutter T, Fig. 12, is mounted in a block 145 adjustable angularly on straps 141, 142 secured to an over-arm 140. A drawbar 166 secures the cutter in a spindle 148 supported against thrust and axial bearings 149, 160. The spindle is rotated by the machine spindle 170 through bevel gears 168, 163. The mould blanks are initially made by making slantwise cuts in a circular blank to produce eight sections. The sections are assembled as shown in Fig. 14, allowance being made in machining for shrinkage. The cutter may have a straight or involute profile, and may be tilted to vary the pressure angle. For setting-up purposes, a master pattern may be made by positioning a toothless wooden segment below a finish-machined master worm-wheel, pouring plaster into the spaces and machining a locating hole therein. The master is then mounted in the machine which is operated manually to move the master into contact with the stationary cutter. Adjustments are made until the cutter correctly follows the master contour. A blank is then cut, indexing being effected by moving the screw 50 into successive holes 47. When one side of all teeth of the blanks has been cut, the blanks are reversed and the other sides are cut. Alternatively, the blanks may each be finished at one setting by moving the cutter. The cradle may be counterbalanced and the cut always be taken in one direction to eliminate backlash. The cast worm-wheel may be hobbed or lapped or run-in or used directly as cast if lead is included in the bronze. Specification 871,021 is referred to.
Patent GB-724634-A (GB)
Title: Improvements in party line and like circuit arrangements
Inventor: LANGHAM JACK KENNETH
IPC: H04Q5/02
Filed: 1953-08-12
Abstract: 724,634. Automatic exchange systems. TELEPHONE MANUFACTURING CO., Ltd. Aug. 12, 1953, No. 22277/53. Class 40 (4). At each substation on a party line, the bell R and its isolating condenser C are connected across the line and the condenser C is connected in series with a gas-discharge tube T which strikes in response to ringing current but at other times effectively isolates the condenser C from the line, so as to prevent impulses dialled from one substation from being distorted by the condensers C at other substations on the line. The condenser C together with a resistor S provide a spark-quench circuit for the impulse springs IP of the dial which also comprises offnormal contacts ON.
Patent GB-445455-A (GB)
Title: Improvements in or relating to electro-therapeutic bath apparatus
IPC: A61N1/44
Filed: 1935-08-07
Abstract: 445,455. Electro-therapeutic baths. GES. FUR ELEKTRO - THERAPIE, 10, Neckarstrasse, Untert³rkheim, Stuttgart, Germany.-(Assignees of Stanger, H. ; 4, Karlsplatz, Ulm-on-Danube, Germany) Aug. 7, 1935, No. 22279. Convention date, Aug. 7, 1934. [Class 81 (ii)] In a therapeutic bath a, having one or more electrodes to be inserted therein and preferably also having electrodes built into the sides thereof, one or more brackets b for carrying the electrodes to be inserted are provided, each bracket having a swinging movement over and away from the bath in a bearing such as d and being movable along the bath on a slide rail c. The bracket b encloses a flex e connected to a conducting portion g separated from b by insulating material h. and if desired covered with insulating material. The flex e is held taut by winding around a spring drum at one end of the bath. The electrode is electrically connected, directly or otherwise, with the part g.
Patent GB-1063163-A (GB)
Title: Production of methacrylic acid
IPC: C07C51/285
Filed: 1964-05-29
Abstract: Isobutene may be prepared as a co-product in the preparation of methacrylic acid by oxidizing isobutane with a molecular oxygen-containing gas to produce tertiary butyl hydroperoxide and tertiary butyl alcohol, reacting the tertiary butyl hydroperoxide with methacrolein to produce methacrylic acid and tertiary butyl alcohol, and dehydrating at least part of the tertiary butyl alcohol produced in each of the two preceding steps to isobutene. The dehydration may be effected in the presence or absence of a catalyst at 150 DEG  to 500 DEG  C. and at least part of the isobutene produced is oxidized to methacrolein which is passed to the methacrylic acid producing step.ALSO:Methacrylic acid is prepared by oxidizing isobutane with a molecular oxygen-containing gas to produce tertiary butyl hydroperoxide and tertiary butyl alcohol, reacting the tertiary butyl hydroperoxide with methacrolein to produce methacrylic acid and tertiary butyl alcohol, converting at least part of the tertiary butyl alcohol produced in each of the two preceding steps to methacrolein, passing the methacrolein to the methacrylic acid producing step, and recovering the methacrylic acid as product. Alternatively, the reaction mixture containing methacrylic acid may be contacted with a C1 to C12 alcohol and heated to effect esterification and the resulting methacrylate ester recovered. The conversion of tertiary butyl alcohol to methacrolein may be effected directly by vapour phase oxidation with molecular oxygen in the presence of a catalyst or indirectly by dehydration to isobutene at 150 DEG  to 500 DEG  C. and subsequent vapour phase catalytic oxidation of isobutene to methacrolein. Specification 1,060,777 is referred to.ALSO:An oxidation catalyst is prepared by impregnating irregular 4 mesh silicon carbide with a solution obtained by dissolving copper chloride in aqueous ammonia and adding thereto ammonium molybdate, ammonium chromate and ammonium phosphate, evaporating the mixture to dryers up to 120 DEG C, and heating the impregnated silicon carbide thus obtained in a muffle furnace at 400 DEG C for 15 hours; the amount of impregnating materials used being such that for 100 gms of silicon carbide the added weight in the product catalyst is 10 gms, the ratio of formula weight of Cu: Mo: Cr is 1:1:1, and phosphorous as phosphate is 15% by weight of the catalyst mixture on the silicon carbide.
Patent GB-1003658-A (GB)
Title: Crucible or like vessel
IPC: C21C5/42
Filed: 1964-05-29
Abstract: 1,003,658. Metallurgical converters. BOT BRASSERT OXYGEN TECKNIK A.G. May 29, 1964 [May 30, 1963], No. 22421/64. Heading F4B. A top blown converter 1 associated with a vertically movable flue 11 comprises a watercooled sealing ring 5 bolted to a T-shaped flange 2 on top of the converter shell and having a downwardly sloping inner wall contacting the bottom of flue 11.
Patent GB-1352633-A (GB)
Title: Processes for the production of oligosyl fructoses
IPC: C13K1/00
Filed: 1971-04-19
Abstract: 1352633 Oligosyl fructoses K HAYASHIBARA 19 April 1971 [24 Feb 1970] 22467/71 Heading C2S Oligosyl fructoses having fructose on their reducing ends are made by subjecting a mixture of a starch solution or a starch hydrolysate solution having a concentration of 5-45 wt. per cent and fructose and/or sucrose to the action of an α-amylase having a transfer activity, i.e. is capable of catalysing the hydrolysis of oligosaccharide molecules at the second, third and fourth glucosidic bonds from the non-reducing ends and of catalysing the reaction of the resulting hydrolysate with sucrose or fructose.